| 明渠弯道边界层的Markov特性研究 |
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| 引用本文： | 万涛,白玉川. 明渠弯道边界层的Markov特性研究[J]. 水利与建筑工程学报, 2011, 9(5): 1-4,30 |
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| 作者姓名： | 万涛 白玉川 |
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| 作者单位： | 天津大学河流海岸工程泥沙研究所,天津,300072 |
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| 基金项目： | 国家自然科学基金资助项目(50979066;40776045) |
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| 摘 要： | 针对明渠弯道湍流边界层,利用一阶Markov过程并结合象限分析法,计算了转化模式的转化概率。结果指出各象限平均自转化概率为65.51%,76.98%,69.42%,76.97%,湍流猝发的喷射和清扫发生频率最高;自转化概率P22、P44沿河宽周期性向凸岸衰减,并在弯顶凹岸处达到最大值,其随着底部环流的增大有微弱减小,但...
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| 关 键 词： | Markov过程 UV-象限法 转化概率 猝发 环流 |
Study on Markov Properties of Boundary Layer in Open Channel Bend |
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| WAN Tao,BAI Yu-chuan. Study on Markov Properties of Boundary Layer in Open Channel Bend[J]. Journal of Water Resources Architectural Engineering, 2011, 9(5): 1-4,30 |
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| Authors: | WAN Tao BAI Yu-chuan |
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| Affiliation: | WAN Tao,BAI Yu-chuan(Institute for Sediment on River and Coast Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | Pointing to the turbulent boundary layer of open channel bend,and by utilizing the first-order Markov process combined with quadrant analysis,the 16 transfer probabilities are calculated here,the result indicates that four averaged self-transfer probabilities are 65.51 percent,76.98 percent,69.42 percent and 76.97 percent respectively,and the numbers show that the frequencies of ejection and swap in the bursting process are largest;The self-transfer probabilities P22 and P44 decrease from the concave bank t... |
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| Keywords: | Markov process UV-Quadrant method transfer probability bursting circulation |
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